CA2388016A1 - Method for fabricating electrode for rechargeable lithium battery - Google Patents

Method for fabricating electrode for rechargeable lithium battery Download PDF

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Publication number
CA2388016A1
CA2388016A1 CA002388016A CA2388016A CA2388016A1 CA 2388016 A1 CA2388016 A1 CA 2388016A1 CA 002388016 A CA002388016 A CA 002388016A CA 2388016 A CA2388016 A CA 2388016A CA 2388016 A1 CA2388016 A1 CA 2388016A1
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CA
Canada
Prior art keywords
thin film
active material
electrode
lithium battery
fabricating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002388016A
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French (fr)
Other versions
CA2388016C (en
Inventor
Hiroaki Ikeda
Yoichi Domoto
Hiromasa Yagi
Hisaki Tarui
Masahisa Fujimoto
Shin Fujitani
Masaki Shima
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Sanyo Electric Co Ltd
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Individual
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Publication of CA2388016A1 publication Critical patent/CA2388016A1/en
Application granted granted Critical
Publication of CA2388016C publication Critical patent/CA2388016C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • H01M4/1395—Processes of manufacture of electrodes based on metals, Si or alloys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • H01M4/0404—Methods of deposition of the material by coating on electrode collectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • H01M4/0421—Methods of deposition of the material involving vapour deposition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • H01M4/0421—Methods of deposition of the material involving vapour deposition
    • H01M4/0423—Physical vapour deposition
    • H01M4/0426—Sputtering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Secondary Cells (AREA)
  • Cell Electrode Carriers And Collectors (AREA)

Abstract

A method for producing an electrode for a lithium secondary cell in which an active material thin film made of an active material that can be alloyed wit h lithium is formed on a current collector made of a metal that is not alloyed with lithium by a technique of forming a thin film by supplying a material o f vapor phase, characterized in that the active material thin film is formed a t a temperature at which a mixture layer where a component of the current collector is diffused is formed in the active material thin film near the interface with the current collector.

Claims (12)

1. A method for fabricating an electrode for a rechargeable lithium battery which includes depositing a thin film composed of active material capable of alloy formation with lithium on a current collector made of a metal incapable of alloy formation with lithium, by using a process for depositing a thin film by supplying a material from a gas phase, characterized in that said thin film of active material is deposited at such a temperature that enables formation of a mixed layer via diffusion of a constituent of the current collector into the thin film in the vicinity of an interface therebetween but does not cause production, in said mixed layer, of an intermetallic compound between the active material and the current collector constituent.
2. (Deleted)
3. The method for fabricating an electrode for a rechargeable lithium battery as recited in claim 1 or 2, characterized in that said thin film of active material is deposited at the temperature of below 300°C.
4. The method for fabricating an electrode for a rechargeable lithium battery as recited in any one of claims 1 - 3, characterized in that a heat treatment is carried out after said thin film of active material is deposited on the current collector.
5. The method for fabricating an electrode for a rechargeable lithium battery as recited in claim 4, characterized in that said heat treatment is carried out at a temperature of below 650 °C.
6. The method for fabricating an electrode for a rechargeable lithium battery as recited in any one of claims 1 - 5, characterized in that said active material is composed mainly of silicon or germanium.
7. The method for fabricating an electrode for a rechargeable lithium battery as recited in any one of claims 1 - 6, characterized in that said thin film of active material is an amorphous or microcrystalline silicon thin film.
8. The method for fabricating an electrode for a rechargeable lithium battery as recited in any one of claims 1 - 6, characterized in that said thin film of active material is an amorphous germanium, microcrystalline germanium, amorphous silicon-germanium alloy or microcrystalline silicon-germanium alloy thin film.
9. The method for fabricating an electrode for a rechargeable lithium battery as recited in any one of claims 1 - 8, characterized in that at least a surface portion of said current collector is composed mainly of copper.
10. The method for fabricating an electrode for a rechargeable lithium battery as recited in any one of claims 1 - 9, characterized in that said thin film of active material is deposited by sputtering.
11. The method for fabricating an electrode for a rechargeable lithium battery as recited in any one of claims 1 - 10, characterized in that said thin film of active material is deposited on the current collector in an intermittent manner.
12. The method for fabricating an electrode for a rechargeable lithium battery as recited in claim 11, characterized in that said thin film of active material is deposited on the current collector in an intermittent manner by placing the current collector on an outer periphery of a drum-like holder and then depositing the thin film of active material on the current collector while the holder is rotated.
CA002388016A 1999-10-22 2000-10-20 Method for fabricating electrode for rechargeable lithium battery Expired - Fee Related CA2388016C (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
JP30167999 1999-10-22
JP11/301679 1999-10-22
JP11/301646 1999-10-22
JP30164699 1999-10-22
JP36530699 1999-12-22
JP11/365306 1999-12-22
JP2000003644 2000-01-12
JP2000/3644 2000-01-12
PCT/JP2000/007300 WO2001029914A1 (en) 1999-10-22 2000-10-20 Method for producing electrode for lithium secondary cell

Publications (2)

Publication Number Publication Date
CA2388016A1 true CA2388016A1 (en) 2001-04-26
CA2388016C CA2388016C (en) 2009-12-22

Family

ID=27479809

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002388016A Expired - Fee Related CA2388016C (en) 1999-10-22 2000-10-20 Method for fabricating electrode for rechargeable lithium battery

Country Status (8)

Country Link
US (1) US6685804B1 (en)
EP (1) EP1237210A4 (en)
JP (1) JP3702224B2 (en)
KR (1) KR100487458B1 (en)
CN (1) CN1189958C (en)
AU (1) AU7951400A (en)
CA (1) CA2388016C (en)
WO (1) WO2001029914A1 (en)

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